Platelet-Rich Plasma in a Murine Model: Leukocytes, Growth Factors, Flt-1, and Muscle Healing

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dc.citation.issue8
dc.citation.volume44
dc.contributor.authorAndrade Denapoli, Priscila Martins [UNIFESP]
dc.contributor.authorStilhano, Roberta Sessa [UNIFESP]
dc.contributor.authorMcNeill Ingham, Sheila Jean [UNIFESP]
dc.contributor.authorHan, Sang Won [UNIFESP]
dc.contributor.authorAbdalla, Rene Jorge [UNIFESP]
dc.coverageThousand Oaks
dc.date.accessioned2020-08-14T13:43:55Z
dc.date.available2020-08-14T13:43:55Z
dc.date.issued2016
dc.description.abstractBackground: It is well known that platelet-rich plasma (PRP) preparations are not the same and that not all preparations include white blood cells, but the part that leukocytes play on the healing role of PRP is still unknown. Purpose: The primary aim of this study was to evaluate the influence of leukocytes in different PRP preparations with a special emphasis on growth factor concentrations. The secondary aim was to evaluate the influence of PRP on muscle healing. Study Design: Controlled laboratory study. Methods: Two PRP preparation procedures were evaluated. Blood fractions were stained with Rapid Panoptic, and growth factors (transforming growth factor beta 1 [TGF-1], vascular endothelial growth factor [VEGF], insulin-like growth factor [IGF], epidermal growth factor [EGF], hepatocyte growth factor [HGF], and platelet-derived growth factor [PDGF]) were quantified by enzyme-linked immunosorbent assay. Western blotting analysis was performed for Fms-related tyrosine kinase 1 (Flt-1). A muscle contusion injury was created and treated with PRP at different time points. Results: Leukocytes were the main source of VEGF, and all other growth factors measured had a higher concentration in the preparations that included the buffy coat and consequently had a higher concentration of white blood cells. Flt-1 was also found in platelet-poor plasma (PPP). There were higher concentrations of PDGF and HGF in the preparations that encompassed the buffy coat. A PRP injection 7 days after the injury provided significantly increased exercise performance and decreased the fibrotic area when compared with other PRP-treated groups. Conclusion: VEGF is only present in PRPs buffy coat, while Flt-1 is present in PPP. A PRP injection 7 days after an injury resulted in improved exercise performance. Clinical Relevance: The presence of Flt-1 in PRP provides yet another explanation for results described in the literature after a PRP injection. This information is relevant for selecting the best PRP for each type of injury.en
dc.description.affiliationUniv Fed Sao Paulo, Sao Paulo, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Dept Orthoped Surg, Sch Med, Rua Borges Lagoa 783,5th Floor, BR-04038032 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Ctr Cell & Mol Therapy, Sao Paulo, Brazil
dc.description.affiliationHeart Hosp, Knee Inst, Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Orthoped Surg, Sch Med, Rua Borges Lagoa 783,5th Floor, BR-04038032 Sao Paulo, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Ctr Cell & Mol Therapy, Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Sao Paulo Research Funding Foundation)
dc.description.sponsorshipDePuy Synthes
dc.description.sponsorshipSmith Nephew
dc.description.sponsorshipIDFAPESP: 2011/09687-3
dc.format.extent1962-1971
dc.identifierhttp://dx.doi.org/10.1177/0363546516646100
dc.identifier.citationAmerican Journal Of Sports Medicine. Thousand Oaks, v. 44, n. 8, p. 1962-1971, 2016.
dc.identifier.doi10.1177/0363546516646100
dc.identifier.issn0363-5465
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/57441
dc.identifier.wosWOS:000382208100010
dc.language.isoeng
dc.publisherSage Publications Inc
dc.relation.ispartofAmerican Journal Of Sports Medicine
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectplatelet-rich plasmaen
dc.subjectleukocytesen
dc.subjectFlt-1en
dc.subjectVEGFen
dc.subjectmuscle contusionen
dc.titlePlatelet-Rich Plasma in a Murine Model: Leukocytes, Growth Factors, Flt-1, and Muscle Healingen
dc.typeinfo:eu-repo/semantics/article
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